反应详情

A solution of 2.40 g (5.71 mmol) of the ester obtained in Example 59 (b) in 30 ml of THF is treated with mg of tetrakis(triphenylphosphine)palladium(0) and 5 ml of morpholine under the preparation conditions of Example 24(b), to yield 1.94 g (89%) of the expected derivative, melting point 138° C. (αD =-53.2°; c=1, ethanol).